PROBLEM TO BE SOLVED: To obtain a rice cooker capable of stably and excellently cooking rice without allowing a user to spend time and labor.SOLUTION: A rice cooker includes: a body 1 a pot shape container 5 to be stored in the body 1 a lid body 10 for covering the opening of the pot shape container 5 a heating coil 3 for heating the pot shape container 5 control means 8 for drive-controlling the heating coil 3 and performing rice cooking processes including a pre-heating process and a temperature rising process and water absorption determination means 16A for determining the water absorption level of rice on the basis of the change of a moisture content of the rice. The control means 8 controls the time of the pre-heating process in accordance with the absorption level of rice determined by the water absorption determination means 16A.COPYRIGHT: (C)2014,JPO&INPIT【課題】使用者に手間をかけさせることなく、安定的に美味しく炊飯することができる炊飯器を得る。【解決手段】本体1と、本体1に収容される鍋状容器5と、鍋状容器5の開口部を覆う蓋体10と、鍋状容器5を加熱する加熱コイル3と、加熱コイル3を駆動制御して予熱工程と昇温工程とを含む炊飯工程を実行する制御手段8と、米の含水率の変化に基づいて米の吸水のしやすさを判断する吸水判断手段16Aとを備え、制御手段8は、吸水判断手段16Aにより判断された米の吸水のしやすさに応じて、予熱工程の時間を制御する。【選択図】図6
